poet_settings_view.py 文件源码

def initial_wait_time(self):
        """Return the initial wait time if config setting exists and is valid,
        otherwise return the default.

        The initial wait time is used during the bootstrapping of the block-
        chain to compute the local mean for wait timers until there are at
        least population_estimate_sample_size PoET blocks in the blockchain.
        """
        if self._initial_wait_time is None:
            self._initial_wait_time = \
                self._get_config_setting(
                    name='sawtooth.poet.initial_wait_time',
                    value_type=float,
                    default_value=PoetSettingsView._INITIAL_WAIT_TIME_,
                    validate_function=lambda value:
                        math.isfinite(value) and value >= 0)

        return self._initial_wait_time